WO2019242428A1

WO2019242428A1 - Information transmission method and apparatus

Info

Publication number: WO2019242428A1
Application number: PCT/CN2019/086677
Authority: WO
Inventors: 黄莹; 陈琳
Original assignee: 中兴通讯股份有限公司
Priority date: 2018-06-21
Filing date: 2019-05-13
Publication date: 2019-12-26
Also published as: US11516874B2; EP3813481A1; CN110636644A; EP3813481A4; CN110636644B; KR20210024493A; EP3813481B1; US20210219374A1

Abstract

Provided in the present application are an information transmission method and apparatus. The method comprises: an IAB node sending an F1 message to a base station, and forwarding the F1 message to an IAB donor via the base station, such that the problem of the lack of a solution suitable for new wireless transmission of IAB control plane information in the related art is solved, and the control plane information is precisely forwarded between the IAB node and the IAB donor in time.

Description

Information transmission method and device

Technical field

The present application relates to the field of communications, and in particular, to an information transmission method and device.

Background technique

In related technologies, compared with the long-term evolution system LTE, the new wireless NR has larger available bandwidth, massive MIMO, and the use of multi-beam, which makes research on integrated access and backhaul links (IAB). And applications become possible. Through wireless backhaul links and relay links, denser NR cell networks can be deployed more flexibly without the need to increase the dense deployment of the transmission network accordingly. An access node that supports UE wireless access and wirelessly transmits user plane or control plane data packets is called an IAB node (IAB node), which can have distributed unit DU or gNB logic functions. The IAB node also has a mobile terminal MT Logic function (also referred to as UE logic function). An access node that provides a wireless backhaul function for the IAB node to enable the UE to connect to the core network is called an IAB host (IAB donor), and may have DU and / or CU or gNB functions. An IAB node (also referred to as a child IAB node or IAB child node, child IAB node) can access another IAB node (also known as a parent IAB node or parent IAB node, parent IAB node) through an air interface, or access an IAB node. . The access nodes can transmit user plane or control plane data packets through a wireless backhaul link. The access link Access link and backhaul link can use the same or different carrier frequencies. In addition, user plane or control plane data packets can be transmitted through a multi-hop relay backhaul link between the access node and the core network element. Supporting CU / DU separation deployment is an important technical feature in NR, that is, gNB is composed of CU and DU logic functions, so it is also necessary to support IAB functions in CU / DU separation deployment scenarios. The CU may be further composed of control plane (also called CU-CP) and user plane (also called CU-UP) logic functions. In addition, IAB needs to consider standalone and non-standalone deployment scenarios. Figure 1 is a schematic diagram of an independent or non-standalone deployment scenario based on IAB in the related technology, as shown in Figure 1, where a) is a standalone deployment scenario. b) and c) are non-standalone deployment scenarios.

Aiming at the problem that the related art lacks an IAB control plane information transmission scheme suitable for the new wireless, there is currently no effective solution.

Summary of the Invention

The embodiments of the present application provide an information transmission method and device, so as to at least solve the problem that the related art lacks an IAB control plane information transmission scheme suitable for new wireless.

According to an embodiment of the present application, an information transmission method and apparatus are provided, including: sending and receiving an F1 message to a base station from an access and return IAB node, wherein the F1 message is forwarded to the IAB host donor through the base station.

According to another embodiment of the present application document, an information transmission method is further provided, including: a base station receives an F1 message sent by an IAB node; and the base station sends the F1 message to an IAB donor through an X2 message.

According to another embodiment of the present application document, an information transmission method is further provided, including: an IAB donator sends an F1 message to a base station through an X2 message, wherein the F1 message is sent to an IAB node through the base station.

According to another embodiment of the application document, an information transmission method is further provided, including: a base station receiving an F1 message sent by an IAB donor through an X2 message; and the base station sending the F1 message to an IAB node.

According to another embodiment of the application document, an information transmission method is further provided, including: an IAB node includes an F1 message in a second RRC message; including the second RRC message in a third RRC message; and sending The third RRC message is sent to the base station, and the second RRC message is sent to the IAB donor through the base station.

According to another embodiment of this application document, an information transmission method is further provided, including: the base station receives a third RRC message sent by an IAB node, wherein the third RRC message includes a second RRC message, and The second RRC message includes an F1 message; and the second RRC message is sent to the IAB donor through an X2 message.

According to another embodiment of this application document, an information transmission method is further provided, including: the IAB donator sends a second RRC message to the base station through an X2 message, wherein the second RRC message includes an F1 message, where The base station sends a third RRC message carrying the second RRC message to an IAB node.

According to another embodiment of this application document, an information transmission method is further provided, including: the base station receives a second RRC message sent by the IAB donor through an X2 message, wherein the second RRC message includes an F1 message; The base station sends a third RRC message to the IAB node, wherein the third RRC message includes the second RRC message.

According to another embodiment of this application document, an information transmission device is further provided, including: a first sending module configured to send an F1 message to a base station, wherein the F1 message is forwarded to the IAB host donor by the base station.

According to another embodiment of the application document, an information transmission device is further provided, including: a second receiving module configured to receive an F1 message sent by an IAB node; and a second sending module configured to receive the F1 message through an X2 message The message is sent to the IAB.

According to another embodiment of this application document, an information transmission device is further provided, including: a third sending module configured to send an F1 message to a base station through an X2 message, wherein the F1 message is sent to an IAB through the base station node.

According to another embodiment of the application document, an information transmission device is further provided, including: a fourth receiving module configured to receive an F1 message sent by an IAB donor through an X2 message; a fourth sending module configured to send the F1 Message to IAB node.

According to another embodiment of the application document, an information transmission device is further provided, including: a fifth processing module, including the F1 message in a second RRC message, and including the second RRC message in a third RRC message Medium; a fifth sending module is configured to send the third RRC message to a base station, and send the second RRC message to an IAB donor through the base station.

According to another embodiment of this application document, an information transmission device is further provided, including: a sixth receiving module configured to receive a third RRC message sent by an IAB node, wherein the third RRC message includes a first Two RRC messages, the second RRC message includes an F1 message; a sixth sending module is configured to send the second RRC message to an IAB donor through an X2 message.

According to another embodiment of the present application document, an information transmission device is further provided, including: a seventh sending module configured to send a second RRC message to the base station through an X2 message, wherein the second RRC message includes F1 A message, wherein a third RRC message carrying the second RRC message is sent to the IAB node by the base station.

According to another embodiment of the application document, an information transmission device is further provided, including: an eighth receiving module configured to receive a second RRC message sent by an IAB donor through an X2 message, wherein the second RRC message The F1 message is included; the eighth sending module is configured to send a third RRC message to the IAB node, wherein the third RRC message includes the second RRC message.

According to still another embodiment of the present application, a storage medium is further provided. The storage medium stores a computer program, and the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.

According to another embodiment of the present application, an electronic device is further provided, which includes a memory and a processor. The memory stores a computer program, and the processor is configured to run the computer program to execute any one of the foregoing. Steps in a method embodiment.

Through this application, the IAB node sends the F1 message to the base station, and forwards the F1 message to the IAB through the base station, which solves the problem of the lack of an IAB control plane information transmission scheme suitable for the new wireless technology in the related technology, and timely and accurately implements the IAB in the IAB. Control plane information is forwarded between the node and the IAB donor.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and the descriptions thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

FIG. 1 is a schematic diagram of an independent or non-independent deployment scenario according to the IAB in the related technology; FIG.

FIG. 2 is a schematic diagram of a network architecture according to the application document;

3 is a flowchart of an information transmission method according to an embodiment of the present application;

4 is a schematic diagram of a scenario where an IAB node accesses in an EN-DC manner according to the present application;

5 is a schematic diagram of a protocol stack according to the first exemplary embodiment of the document;

6 is a schematic diagram of a protocol stack according to the second exemplary embodiment of the present application;

FIG. 7 is a schematic diagram of a protocol stack according to a third exemplary embodiment of the present document.

detailed description

Hereinafter, the present application will be described in detail with reference to the drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

It should be noted that the terms “first” and “second” in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

Example one

An embodiment of the present application provides a mobile communication network (including but not limited to a 5G mobile communication network), and a network architecture of the network may include a network side device (for example, a base station) and a terminal. In this embodiment, an information transmission method that can be run on the network architecture is provided. It should be noted that the operating environment of the information transmission method provided in the embodiment of the present application is not limited to the network architecture.

The embodiment of the present application can be run on the network architecture shown in FIG. 2. FIG. 2 is a schematic diagram of the network architecture according to the document of this application. As shown in FIG. 2, the network architecture includes: A, IAB node; B base station; C, IAB donor.

In this embodiment, an information transmission method running on the network architecture is provided. FIG. 3 is a flowchart of an information transmission method according to an embodiment of the present application. As shown in FIG. 3, the process includes the following steps:

Step S302: Determine the F1 message to be transmitted from the access and return IAB node;

Step S304: The F1 message is sent from the access and return IAB node to the base station, and the F1 message is forwarded to the IAB host donor through the base station.

Through the above steps, the IAB node sends the F1 message to the base station, and forwards the F1 message to the IAB through the base station, which solves the problem of the lack of an IAB control plane information transmission solution suitable for the new wireless technology in the related technology, and timely and accurately implements the Control plane information is forwarded between the node and the IAB donor.

Optionally, the execution order of step S302 and step S304 is interchangeable, that is, step S304 may be performed first, and then step S302 may be performed.

Optionally, the self-access and backhaul IAB node sends the F1 message to the base station, including at least one of the following: the IAB node includes the F1 message in the first RRC message, and sends the first RRC message to the base station; the The IAB node sends an F1 message to the base station through a signaling radio bearer SRB.

Optionally, at least one of the F1 message and the first RRC message meets the following characteristics: including at least one of the following information: node identification information of the source node, and node identification information of the target node.

Optionally, the node identification information is used to identify one of the following information: a distributed unit (DU) used to identify an IAB node; a base station portion used to identify an IAB node; and a distributed unit DU used to identify an IAB donor ; Centralized Unit (CU) for identifying the IAB donor; Base station part for identifying the IAB donor.

Optionally, the node identification information includes one of the following: base station distributed unit identification gNB-DU ID, base station identification, DU identification, CU identification, cell identification, physical cell identification PCI (Physical Cell Identifier), Internet Protocol address IP address , New definition ID.

Optionally, the node identification information is used to identify the following information: used to identify the mobile terminal part MT of the IAB node.

The solutions regarding the node identification information described in the foregoing four optional embodiments may be applicable to other embodiments of this application document.

Optionally, the node identification information includes one of the following: a cell wireless network temporary identifier (C-RNTI); C-RNTI + cell identifier; C-RNTI + base station identifier; C-RNTI + DU identifier; C- RNTI + CU identification; F1 application protocol F1AP ID (F1Application Protocol); X2 application protocol X2AP ID (X2 Application Protocol); GTP TEID (GPRS Tunnel Protocol Endpoint Identity); newly defined identification.

According to another embodiment of the application document, an information transmission method is further provided, including the following steps:

Step 1: The base station receives the F1 message sent by the IAB node.

Step 2: The base station sends the F1 message to the IAB donor through an X2 message.

The above technical solution is adopted to solve the problem that the related technology lacks an IAB control plane information transmission scheme suitable for the new wireless, and timely and accurately realizes the control plane information forwarding between the IAB node and the IAB donor.

Optionally, at least one of the X2 message and the F1 message meets the following characteristics: including one of the following information: node identification information of the source node, and target node identification information.

Step 1: The IAB donor sends an F1 message to the base station through an X2 message, and the F1 message is sent to the IAB node through the base station.

Optionally, at least one of the X2 message and the F1 message satisfies the following characteristics:

Contains at least one of the following information:

Node identification information of the source node;

Node identification information of the target node.

Step 1: The base station receives the F1 message sent by the IAB donor through the X2 message;

Step 2: The base station sends the F1 message to the IAB node.

Optionally, the base station sends the F1 message to the IAB node, including at least one of the following: the base station includes the F1 message in the first RRC message, and sends the first RRC message to the IAB node; the base station sends the F1 through the SRB Message to IAB node.

Optionally, at least one of the F1 message, the first RRC message, and the X2 message satisfies the following characteristics:

Contains at least one of the following information:

Node identification information of the source node and node identification information of the destination node.

Step 1: The IAB node includes the F1 message in the second RRC message;

Step 2: include the second RRC message in the third RRC message;

Step 3: Send the third RRC message to the base station, and send the second RRC message to the IAB donor through the base station.

Optionally, at least one of the F1 message, the second RRC message, and the third RRC message meets the following characteristics: including at least one of the following information: node identification information of the source node, and node identification information of the target node.

According to another embodiment of the application document, an information transmission method is further provided, which includes the following steps:

Step 1: The base station receives a third RRC message sent by the IAB node, where the third RRC message includes a second RRC message, and the second RRC message includes an F1 message;

Step 2: Send the second RRC message to the IAB donor through an X2 message.

Optionally, at least one of the F1 message, the second RRC message, the third RRC message, and the X2 message satisfies the following characteristics: including at least one of the following information: node identification information of the source node, and node identification of the target node information.

Step 1: The IAB donor sends a second RRC message to the base station through an X2 message, where the second RRC message includes an F1 message, and the third RRC message carrying the second RRC message is sent to the IAB node through the base station.

Optionally, at least one of the F1 message, the second RRC message, the third RRC message, and the X2 message satisfies the following characteristics: contains at least one of the following information: the node identification information of the source node, and the node identification of the target node information.

Step 1: The base station receives a second RRC message sent by the IAB donor through an X2 message, where the second RRC message includes an F1 message;

Step 2: The base station sends a third RRC message to the IAB node, where the third RRC message includes the second RRC message.

The following describes with reference to another embodiment of the application document.

FIG. 4 is a schematic diagram of a scenario where an IAB node accesses through an EN-DC method according to the present application. (E-UTRAN, NR, Dual connectivity, referred to as EN-DC), the UE is connected to IAB node1, and IAB node1 is connected to MeNB (or eNB), and connects to IAB node2 and IAB donor through NR access technology. IAB donor is IAB donor CU and / or IAB donor DU. DU, MT function.

Exemplary Embodiment 1

The method in this embodiment is a method in which the RRC message of the IAB node is forwarded by the base station. FIG. 5 is a schematic diagram of a protocol stack according to the first exemplary embodiment of the document.

As shown in FIG. 5, for the uplink, IAB node1 generates RRC message 1 and encapsulates RRC message 1 into RRC message 2 (for example, ULInformationTransferMRDC message) and sends it to MeNB. After receiving, the MeNB parses out the RRC message 1 generated by the IAB node1, and encapsulates the RRC message 1 into an X2 message (for example, an RRC transfer message) and sends it to the IAB donor.

Optionally, the RRC message 1 or the RRC message 2 or the X2 message includes source and / or target node identification information. The node identification information is used to identify the DU part or CU part or base station of the IAB node or IAB donor, including but not limited to: gNB-DU ID, base station identification, DU identification, CU identification, cell identification, PCI, newly defined identification. Alternatively, the node identification information is used to identify the MT part of the IAB node or IAB donor, including but not limited to: C-RNTI; C-RNTI + cell identity; C-RNTI + base station identity; C-RNTI + DU identity; C-RNTI + CU Identification; F1AP ID; X2AP ID; GTP TEID; newly defined identification; in the transmission scenario of the uplink RRC message in this embodiment, the source node refers to IAB node1, and the target node refers to IAB donor.

As shown in FIG. 5, for the downlink, the IAB donor generates an RRC message 3 and encapsulates the RRC message 3 in an X2 message (for example, an RRC transfer message) and sends it to the MeNB. After MeNB obtains RRC message 3 after parsing, it encapsulates RRC message 3 in RRC message 4 (such as DLInformationTransferMRDC message, DLInformationTransfer message or newly defined RRC message) and sends it to IAB node1.

Optionally, the RRC message 3 or the RRC message 4 or the X2 message includes source and / or target node identification information. The node identification information is set to identify the DU part or CU part or base station of the IAB node or IAB donor, including but not limited to: gNB-DU ID, base station identification, DU identification, CU identification, cell identification, PCI, newly defined identification. Alternatively, the node identification information is set to identify the MT part of the IAB node or IAB donor, including but not limited to: C-RNTI; C-RNTI + cell identity; C-RNTI + base station identity; C-RNTI + DU identity; C-RNTI + CU Identification; F1AP ID; X2AP ID; GTP TEID; newly defined identification; in the transmission scenario of the downlink RRC message in this embodiment, the source node refers to the IAB donor, and the target node refers to the IAB node1.

Exemplary Embodiment Two

The method in this embodiment is the first method of forwarding the F1 message through the IAB node through the base station. FIG. 6 is a schematic diagram of a protocol stack according to the second exemplary embodiment of the present application. It should be noted that in Figure 6, there may or may not be an RRC protocol layer between the IAB node 1 and the MeNB.

As shown in Figure 6, for the uplink, after IAB node1 generates the F1 message, it encapsulates it into RRC message 1 (such as UL information transfer message, newly defined RRC message); or, IAB node1 directly delivers the F1 message to PDCP Layer processing without RRC layer processing. Optionally, IAB node1 sends it to the MeNB through an SRB dedicated to forwarding F1 messages; optionally, IAB node1 obtains the bearer configuration information from the donor CU through an RRC message or an F1 message, and the bearer configuration information is used to configure dedicated to forward F1 messages The SRB may contain the SRB ID and associated indication information for forwarding F1 messages, or the SRB ID may implicitly indicate that the associated bearer is used to forward F1 messages; or IAB node1 performs PDCP layer processing and passes PDCP data packets. It carries protocol type indication information, which is used to indicate that it is an F1 message.

IAB node1 sends the F1 message to the MeNB through the SRB. MeNB obtains the F1 message generated by IAB node1 after analyzing the corresponding protocol layer. The F1 message is then encapsulated into an X2 message (for example, F1AP message transfer message, newly defined X2 message) and sent to the IAB donor.

Optionally, the F1 message, the RRC message, or the X2 message includes source and / or target node identification information. The node identification information is used to identify the DU part or CU part or base station of the IAB node or IAB donor, including but not limited to: gNB-DU ID, base station identification, DU identification, CU identification, cell identification, PCI, newly defined identification. Alternatively, the node identification information is used to identify the MT part of the IAB node or IAB donor, including but not limited to: C-RNTI; C-RNTI + cell identity; C-RNTI + base station identity; C-RNTI + DU identity; C-RNTI + CU Identification; F1AP ID; X2AP ID; GTP TEID; newly defined identification; in the transmission scenario of the uplink F1 message in this embodiment, the source node refers to IAB node1, and the target node refers to IAB donor.

As shown in FIG. 6, for the downlink, after the IAB donor generates the F1 message, it encapsulates the F1 message in an X2 message (for example, a F1AP message transfer message and a newly defined X2 message) and sends it to the MeNB. The MeNB obtains the F1 message after parsing. The MeNB then encapsulates the F1 message into an RRC message (eg, a UL information transfer message, a newly defined RRC message) and sends it to the IAB node1. Alternatively, the MeNB does not encapsulate the F1 message into the RRC message, but directly delivers the F1 message to the PDCP layer for processing, and sends it to the IAB node 1 through the SRB. Optionally, the MeNB sends the IRB to the IAB node1 or the MeNB for PDCP layer processing through an SRB dedicated to forwarding the F1 message, and the PDCP data packet carries protocol type indication information, which is used to indicate that it is an F1 message.

Optionally, the F1 message, the RRC message, or the X2 message includes source and / or target node identification information. The node identification information is used to identify the DU part or CU part or base station of the IAB node or IAB donor, including but not limited to: gNB-DU ID, base station identification, DU identification, CU identification, cell identification, PCI, newly defined identification. Alternatively, the node identification information is used to identify the MT part of the IAB node or IAB donor, including but not limited to: C-RNTI; C-RNTI + cell identity; C-RNTI + base station identity; C-RNTI + DU identity; C-RNTI + CU Identification; F1AP ID; X2AP ID; GTP TEID; newly defined identification; in the transmission scenario of the downlink F1 message in this embodiment, the source node refers to the IAB donor, and the target node refers to the IAB node1.

Exemplary embodiment three

The method in this embodiment is the second method of forwarding the F1 message through the base station through the IAB node. FIG. 7 is a schematic diagram of a protocol stack according to a third exemplary embodiment of the present document.

As shown in FIG. 7, for the uplink, IAB node1 generates an F1 message, and encapsulates the F1 message into RRC message 1. The IAB node1 then encapsulates the RRC message 1 into an RRC message 2 (for example, a ULInformationTransferMRDC message) and sends it to the MeNB. After receiving, the MeNB parses out the RRC message 1 generated by the IAB node1, and encapsulates the RRC message 1 into an X2 message (for example, an RRC transfer message) and sends it to the IAB donor.

Optionally, the RRC message 1 or the RRC message 2 or the X2 message includes source and / or target node identification information. The node identification information is used to identify the DU part or CU part or base station of the IAB node or IAB donor, including but not limited to: gNB-DU ID, base station identification, DU identification, CU identification, cell identification, PCI, newly defined identification. Alternatively, the node identification information is used to identify the MT part of the IAB node or IAB donor, including but not limited to: C-RNTI; C-RNTI + cell identity; C-RNTI + base station identity; C-RNTI + DU identity; C-RNTI + CU Identification; F1AP ID; X2AP ID; GTP TEID; newly defined identification; in the transmission scenario of the uplink F1 message in this embodiment, the source node refers to IAB node1, and the target node refers to IAB donor.

As shown in FIG. 7, for the downlink, the IAB donor generates an F1 message and encapsulates the F1 message into an RRC message 3. The IAB donor then encapsulates the RRC message 3 in an X2 message (eg, an RRC transfer message) and sends it to the MeNB. MeNB obtains RRC message 3 after parsing, and encapsulates RRC message 3 in RRC message 4 (for example, DLInformationTransferMRDC message, DLInformationTransfer message, or newly defined RRC message) and sends it to IAB node1.

Optionally, the RRC message 3 or the RRC message 4 or the X2 message includes source and / or target node identification information. The node identification information is used to identify the DU part or CU part or base station of the IAB node or IAB donor, including but not limited to: gNB-DU ID, base station identification, DU identification, CU identification, cell identification, PCI, newly defined identification. Alternatively, the node identification information is used to identify the MT part of the IAB node or IAB donor, including but not limited to: C-RNTI; C-RNTI + cell identity; C-RNTI + base station identity; C-RNTI + DU identity; C-RNTI + CU Identification; F1AP ID; X2AP ID; GTP TEID; newly defined identification; in the transmission scenario of the downlink F1 message in this embodiment, the source node refers to the IAB donor, and the target node refers to the IAB node1.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary universal hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is Better implementation. Based on such an understanding, the technical solution of this application that is essentially or contributes to related technologies can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, and optical disk) ) Includes several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the embodiments of the present application.

Example two

An information transmission device is also provided in this embodiment, and the device is used to implement the foregoing embodiments and preferred implementation manners, and the descriptions will not be repeated. As used below, the term "module" may implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and conceived.

According to an embodiment of the present application document, an information transmission device applied to self-access and backhaul IAB nodes is provided, including:

The first sending module is configured to send an F1 message to a base station, where the F1 message is forwarded to the IAB host donor through the base station.

According to an embodiment of the present application document, an information transmission device applied to a base station is provided, including:

A second receiving module configured to receive an F1 message sent by an IAB node;

The second sending module is configured to send the F1 message to the IAB donor through an X2 message.

According to an embodiment of the present application document, an information transmission device applied to self-access and backhaul IAB donors is provided, including:

The third sending module is configured to send the F1 message to the base station through an X2 message, where the F1 message is sent to the IAB node through the base station.

The fourth receiving module is configured to receive the F1 message sent by the IAB donor through the X2 message;

The fourth sending module is configured to send the F1 message to the IAB node.

A fifth processing module, including the F1 message in the second RRC message, and including the second RRC message in the third RRC message;

A fifth sending module is configured to send the third RRC message to the base station, and send the second RRC message to the IAB donor through the base station.

The sixth receiving module is configured to receive a third RRC message sent by the IAB node, where the third RRC message includes a second RRC message, and the second RRC message includes an F1 message;

The sixth sending module is configured to send the second RRC message to the IAB donor through an X2 message.

A seventh sending module is configured to send a second RRC message to the base station through an X2 message, where the second RRC message includes an F1 message, and a third RRC message carrying the second RRC message is sent to the IAB through the base station. node.

An eighth receiving module is configured to receive a second RRC message sent by the IAB donor through an X2 message, where the second RRC message includes an F1 message;

An eighth sending module is configured to send a third RRC message to the IAB node, where the third RRC message includes the second RRC message.

It should be noted that each of the above modules can be implemented by software or hardware. For the latter, it can be implemented by the following methods, but is not limited to the above: the above modules are all located in the same processor; The forms are located in different processors.

Example three

An embodiment of the present application further provides a storage medium. Optionally, in this embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1. Self-access and return IAB nodes determine the F1 message to be transmitted;

S2. The F1 message is sent from the access and backhaul IAB node to the base station, and the F1 message is forwarded to the IAB host donor by the base station.

Optionally, in this embodiment, the foregoing storage medium may include, but is not limited to, a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, and a magnetic disk. Various media such as discs or optical discs that can store program codes.

An embodiment of the present application further provides an electronic device including a memory and a processor. The memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the foregoing method embodiments.

Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

Optionally, in this embodiment, the foregoing processor may be configured to execute the following steps by a computer program:

Optionally, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementation manners, and details are not described herein again in this embodiment.

Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general-purpose computing device, and they can be centralized on a single computing device or distributed on a network composed of multiple computing devices. Alternatively, they may be implemented with program code executable by a computing device, so that they may be stored in a storage device and executed by the computing device, and in some cases, may be executed in a different order than here The steps shown or described are implemented either by making them into individual integrated circuit modules or by making multiple modules or steps into a single integrated circuit module. As such, this application is not limited to any particular combination of hardware and software.

The above description is only a preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of this application shall be included in the protection scope of this application.

Industrial applicability

In the embodiment of the present disclosure, the IAB node sends an F1 message to the base station, and forwards the F1 message to the IAB through the base station, which solves the problem of lack of an IAB control plane information transmission scheme suitable for new wireless in related technologies, and realizes it in a timely and accurate manner. Control plane information is forwarded between IAB nodes and IAB donors.

Claims

An information transmission method, including:

The F1 message is sent from the access and backhaul IAB node to the base station, where the F1 message is forwarded to the IAB host donor by the base station.
The method according to claim 1, wherein sending the F1 message to the base station from the access and backhaul IAB node comprises at least one of the following:

The IAB node includes the F1 message in a first RRC message, and sends the first RRC message to the base station;

The IAB node sends an F1 message to the base station through a signaling radio bearer SRB.
The method according to claim 2, wherein at least one of the F1 message and the first RRC message satisfies the following characteristics:

Include at least one of the following:

Node identification information of the source node and node identification information of the destination node.
The method according to claim 3, wherein the node identification information is used to identify one of the following information:

A distributed unit DU for identifying an IAB node;

The base station part used to identify the IAB node;

Distributed unit DU for identifying IAB donor;

Centralized unit CU for identifying IAB donor;

Used to identify the base station part of the IAB.
The method according to claim 3, wherein the node identification information is used to identify the following information:

The mobile terminal part MT used to identify the IAB node.
An information transmission method, including:

The base station receives the F1 message sent by the IAB node;

The base station sends the F1 message to the IAB donor through an X2 message.
The method according to claim 6, wherein at least one of the X2 message and the F1 message satisfies the following characteristics:

Contains one of the following information:

Node identification information of the source node and target node identification information.
An information transmission method, including:

The IAB donor sends an F1 message to a base station through an X2 message, where the F1 message is sent to an IAB node through the base station.
The method according to claim 8, wherein at least one of the X2 message and the F1 message satisfies the following characteristics:

Contains at least one of the following information:

Node identification information of the source node;

Node identification information of the target node.
An information transmission method, including:

The base station receives the F1 message sent by the IAB donor through the X2 message;

The base station sends the F1 message to an IAB node.
The method according to claim 10, wherein the base station sends an F1 message to an IAB node, comprising at least one of the following:

The base station includes the F1 message in a first RRC message, and sends the first RRC message to an IAB node;

The base station sends an F1 message to the IAB node through the SRB.
The method according to claim 11, wherein at least one of the F1 message, the first RRC message, and the X2 message satisfies the following characteristics:

Contains at least one of the following information:

Node identification information of the source node and node identification information of the destination node.
An information transmission method, including:

The IAB node includes the F1 message in the second RRC message;

Including the second RRC message in a third RRC message;

Sending the third RRC message to a base station, and sending the second RRC message to an IAB donor through the base station.
The method according to claim 13, wherein at least one of the F1 message, the second RRC message, and the third RRC message satisfies the following characteristics:

Contains at least one of the following information:

Node identification information of the source node and node identification information of the destination node.
An information transmission method, including:

The base station receives a third RRC message sent by the IAB node, where the third RRC message includes a second RRC message, and the second RRC message includes an F1 message;

Sending the second RRC message to the IAB donor through an X2 message.
The method according to claim 15, wherein at least one of the F1 message, the second RRC message, the third RRC message, and the X2 message satisfies the following characteristics:

Contains at least one of the following information:

Node identification information of the source node and node identification information of the destination node.
An information transmission method, including:

The IAB donor sends a second RRC message to the base station through an X2 message, wherein the second RRC message includes an F1 message, and the third RRC message carrying the second RRC message is sent to the IAB node through the base station.
The method according to claim 17, wherein at least one of the F1 message, the second RRC message, the third RRC message, and the X2 message satisfies the following characteristics:

Contains information for at least one of the following:

Node identification information of the source node and node identification information of the destination node.
An information transmission method, including:

The base station receives a second RRC message sent by the IAB donor through an X2 message, where the second RRC message includes an F1 message;

The base station sends a third RRC message to the IAB node, where the third RRC message includes the second RRC message.
An information transmission device, including:

The first sending module is configured to send an F1 message to a base station, where the F1 message is forwarded to the IAB host donor through the base station.
An information transmission device, including:

A second receiving module configured to receive an F1 message sent by an IAB node;

The second sending module is configured to send the F1 message to the IAB donor through an X2 message.
An information transmission device, including:

The third sending module is configured to send the F1 message to the base station through the X2 message, where the F1 message is sent to the IAB node through the base station.
An information transmission device, including:

The fourth receiving module is configured to receive the F1 message sent by the IAB donor through the X2 message;

A fourth sending module is configured to send the F1 message to an IAB node.
An information transmission device, including:

A fifth processing module, including the F1 message in a second RRC message, and including the second RRC message in a third RRC message;

A fifth sending module is configured to send the third RRC message to a base station, and send the second RRC message to an IAB donor through the base station.
An information transmission device, including:

A sixth receiving module is configured to receive a third RRC message sent by an IAB node, where the third RRC message includes a second RRC message, and the second RRC message includes an F1 message;

The sixth sending module is configured to send the second RRC message to the IAB donor through an X2 message.
An information transmission device, including:

A seventh sending module is configured to send a second RRC message to the base station through an X2 message, where the second RRC message includes an F1 message, and wherein a third RRC carrying the second RRC message is sent through the base station. Message to IAB node.
An information transmission device, including:

An eighth receiving module is configured to receive a second RRC message sent by the IAB donor through an X2 message, where the second RRC message includes an F1 message;

An eighth sending module is configured to send a third RRC message to the IAB node, where the third RRC message includes the second RRC message.
A storage medium, wherein a computer program is stored in the storage medium, and the computer program is configured to execute the method according to any one of claims 1 to 19 when running.
An electronic device includes a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the computer program according to any one of claims 1 to 19. method.